The ground rumbles underfoot. An earthquake? No – it is Mega Fatty on the search for more food! This spells bad news for anything Mega Fatty stumbles upon – he is not a very picky eater! Can you overcome the feasting Mega Fatty and his endless gluttony? If not you might just become the final item on the menu…
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Setup
Game Modes
FAQ
Challenge Cards
Credits
Setup
Card(s) Needed
Charmed Fatty, Gutted Fatty, and Peeping Fatty are not required for this challenge but may be added if playing with the Requiem expansion.
Goal
The challenge is won when Engorged Mega Fatty dies.
Setup
- Choose a difficulty level for the challenge:
Normal Hard Ultra Hard - Set up as normal for solitaire/co-op mode.
- Place Engorged Mega Fatty face up to one side of the monster slots in a final boss slot.
(feel free to use your regular Mega Fattycard as a stand-in to represent this!) - Set aside each non-boss monster card with “Fatty” in its name. Select 4 of these cards at random to start the game in minion slots.
(If playing with the Requiem expansion, Gutted Fatty, Peeping Fatty, and Charmed Fatty can be selected in addition to those listed to the left.)
NormalGlobal Modifiers
Spiritual Nourishment
You have +1
for every 2 souls you control.
Meat Shields
The final boss can’t be attacked while there is a minion in play.
Little Fatties
Minions have +2.
Table for Two 
/ 
As each turn ends, if there is a minion in play, choose a random minion. Put feast counters on it equal to the number of of a monster in a monster slot chosen at random, then put that monster into discard.
Remember that the specific rules and global modifiers for this challenge are used in addition to the general challenge rules that apply to all challenges. The general challenge rules can be downloaded separately from maestromedia.com.
Game Modes
Normal
Engorged Mega Fatty doesn’t heal at the end of each turn.
As each turn ends, put feast counters on Engorged Mega Fatty equal to the number of of another monster chosen at random, then put that monster into discard.
Engorged Mega Fatty has +1 for each feast counter on it.
Hard
Engorged Mega Fatty doesn’t heal at the end of each turn.
As each turn ends, put feast counters on Engorged Mega Fatty equal to the number of another monster chosen at random, then put that monster into discard.
Engorged Mega Fatty has +1 for each feast counter on it.
Minions have +1 for every 2 feast counters on them.
Ultra Hard
Engorged Mega Fatty only heals 2 at the end of each turn.
As each turn ends, put feast counters on Engorged Mega Fatty equal to the number of of another monster chosen at random, then put that monster into discard.
Monsters have +1 for each feast counter on them.
Competitive Variant
This challenge is primarily designed for solo and co-op mode, but you can also play a game of regular competitive Four Souls with an added twist.
Setup as normal for a competitive game. Place Engorged Mega Fatty face up to one side of the monster slots in a final boss slot (use the competitive variant version of Engorged Mega Fatty 
).
Fatty slots are a new type of slot specific to this challenge. Each player has their own personal fatty slot. At the start of the game, each player puts a random non-boss monster with “Fatty” in its name in their fatty slot. Monsters in fatty slots are considered minions. Like minion slots, fatty slots are temporary and are not refilled when empty. Monsters in fatty slot will have the same stats for each player due to the competitive variant version of the Little Fatties global modifier.
Engorged Mega Fatty can’t be attacked or take damage while there is a monster in the active player’s fatty slot– e.g. players must kill their own personal fatty before they can attack the final boss.
Minions don’t heal in the competitive variant. They instead eat other monsters to gain feast counters and HP, much the same as in the solo and co-op versions of the challenge.
FAQ
What happens if the fatties have eaten all my monster cards!?
If the monster deck has run out of cards, you shuffle the monster discard and use that to form a new monster deck.
Can Engorged Mega Fatty eat his little fatty underlings?
Yes! Monsters in minion slots do still count as ‘monsters’, remember, and so Engorged Mega Fatty may very well make a snack of his various fatty minions throughout the challenge. In Hard and Ultra Hard, those minions may even provide a very substantial meal for Mega Fatty, having already fattened themselves up by gaining their own feast counters (the HP granted by which will then be converted into feast counters on Engorged Mega Fatty).
Challenge Cards
Credits
| Creator of Four Souls | Edmund McMillen |
| Challenge Design | Charlie Gill |
| Challenge Art | orisghost |
| Producer | Dustin Wessel |
| Editors | egghorse, Cody Underwood |
| Rules Advisor | Sevenut |
| Official TTS Table | Jeremy Silliman, maths |
| Playtesting TTS Table | Troy Thompson |
Information on this page is transcribed from the official PDF file with minor edits to grammar for clarity.